- Served in the Royal Canadian Air Force as a mechanic, and was an apprentice game warden in Manitoba.
- Studied acting at the Manitoba Theatre Center in Winnipeg and the National Theatre School of Canada in Montreal.
- Has appeared in more than 100 TV series, including Soap, The Golden Girls and Murder, She Wrote.
- Auditioned for the part of Colonel Tigh on Battlestar Galactica but after it was given to Michael Hogan, he was offered the recurring role of Dr. Cottle.
- Was presented with the Earle Grey Award for lifetime achievement at Canada's 2006 Gemini Awards.
- Received the Sam Payne Lifetime Achievement Award, presented by the Union of British Columbia Performers, in 2009.
- Martha Henry — Ex-wife
- Morgan Henry — Daughter
- Westerly Henry — Son
- Tim Henry — Brother
- Seana Henry — Daughter
- Anne Henry — Mother
- Deanne Henry — Wife
Season 2, Episode 22
- Birth Name: Donnelly Henry
- Birth Place: Winnipeg, Manitoba, Canada
- Birthday: December 4, 1937, Sagittarius
- Profession: Actor